Thread: 100 Octane VS 91 Octane
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Old Jun 23, 2008 | 08:29 AM
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BrianBrave
<--- Huge Horsepower
Joined: Apr 2007
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From: So Cal
Default Re: 100 Octane VS 91 Octane
Originally Posted by LookieLou
BrianBrave,

Could the difference be the 91 octane having up to 10% ethanol, and the 100 octane having none?
Yes - I discovered that blending the 100 octane with pump gas that contains ethanol will have mixed results.

The 100 octane fuel is not blended with any ethanol.

Thus, It runs and performs better, plus I get increased milage
 
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